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revision 1.49 by rms, Tue Jan 22 06:17:38 2002 UTC revision 1.50 by rms, Sat Jan 26 23:06:28 2002 UTC
# Line 1363  window.  If the value is a positive inte Line 1363  window.  If the value is a positive inte
1363  scrolls the window up to @var{n} lines in either direction, if that will  scrolls the window up to @var{n} lines in either direction, if that will
1364  bring point back into view.  Otherwise, it centers point.  The default  bring point back into view.  Otherwise, it centers point.  The default
1365  value is zero.  value is zero.
   
 A value of @code{nil} is equivalent to .5, since it centers point.  This  
 variable automatically becomes buffer-local when set in any fashion.  
1366  @end defopt  @end defopt
1367    
1368  @defopt scroll-up-aggressively  @defopt scroll-down-aggressively
1369  @tindex scroll-up-aggressively  @tindex scroll-down-aggressively
1370  The value of this variable should be either @code{nil} or a fraction  The value of this variable should be either @code{nil} or a fraction
1371  @var{f} between 0 and 1.  If it is a fraction, that specifies where on  @var{f} between 0 and 1.  If it is a fraction, that specifies where on
1372  the screen to put point when scrolling upward.  More precisely, when a  the screen to put point when scrolling down.  More precisely, when a
1373  window scrolls up because point is above the window start, the new start  window scrolls down because point is above the window start, the new
1374  position is chosen to put point @var{f} part of the window height from  start position is chosen to put point @var{f} part of the window
1375  the top.  The larger @var{f}, the more aggressive the scrolling.  height from the top.  The larger @var{f}, the more aggressive the
1376    scrolling.
1377    
1378  A value of @code{nil} is equivalent to .5, since its effect is to center  A value of @code{nil} is equivalent to .5, since its effect is to center
1379  point.  This variable automatically becomes buffer-local when set in any  point.  This variable automatically becomes buffer-local when set in any
1380  fashion.  fashion.
1381  @end defopt  @end defopt
1382    
1383  @defopt scroll-down-aggressively  @defopt scroll-up-aggressively
1384  @tindex scroll-down-aggressively  @tindex scroll-up-aggressively
1385  Likewise, for scrolling down.  The value, @var{f}, specifies how far  Likewise, for scrolling up.  The value, @var{f}, specifies how far
1386  point should be placed from the bottom of the window; thus, as with  point should be placed from the bottom of the window; thus, as with
1387  @code{scroll-up-aggressively}, a larger value scrolls more aggressively.  @code{scroll-up-aggressively}, a larger value scrolls more aggressively.
1388  @end defopt  @end defopt

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